smg.c has been returning an error to me while compiling.
It is a simple fix, but I don't know which way to go
with it.

Line 70 declares smg_mapchar returns as an int, but
the actual function returns as an unsigned int.
I didn't delve into the code to figure out which
should be right I just made smg_mapchar return as
int and it then compiled.

-Matt